The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Oct. 20, 2016
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
Tamio Kusano, Higashiomi, JP;
Daisuke Sakumoto, Omihachiman, JP;
KYOCERA CORPORATION, Kyoto-Shi, Kyoto, JP;
Abstract
An indoor light source emits light having an emission spectrum including a first peak in a wavelength region of 440 to 460 nm, a second peak in a wavelength region of 540 to 560 nm, and a third peak in a wavelength region of 610 to 630 nm. When the highest one of intensities at the first peak, the second peak, and the third peak is 1 in terms of relative intensity, the emission spectrum includes a lowest light intensity of 0.7 or higher in terms of relative intensity in λ1 to λ2 in nm, and a lowest light intensity of 0.8 or higher in terms of relative intensity in λ2 to λ3 in nm, where λ1 is a peak wavelength at the first peak in nm, λ2 is a peak wavelength at the second peak in nm, and λ3 is a peak wavelength at the third peak in nm.